Disclaimer:
Do not attempt to concentrate any h202 without (a) proper safely materials (eye protection!!) (b)a clear idea of the potential hazards and dangers and how you would react to any of these ©A clear and accurate understanding of the chemistry of the reaction, and (d) The supervision of a responsible adult who will be responsible for your safety and or one who is willing to be sued when you cripple yourself.
To make matters clear, lets begin at the top. Hydrogen peroxide in low concentrations such as those sold at the drug store are not dangerous. It is sold with stabilizing agents that make it difficult to concentrate further. When H2O2 decomposes it looses an oxygen that comes off as a gas. This ability to produce oxygen gives h2o2 its explosive nature. This reaction is also exothermic meaning it give off heat. In small concentrations this change is difficult to measure. At higher concentrations so much heat is given of that it can vaporize the h2o2, creating steam. This reaction is used in some engines.
The fact that stabilizers are present does not mean that the h202 is not dangerous, but that it is only difficult to use. always be aware of the concentrations of your h202 and the safety implications that apply to such concentrations.
Safety concerns come into play when the concentration increases to an extent to make the h2o2 highly corrosive (about 25%), unstable as a lot of heat and oxygen can be produced very quickly, and the combination of extreme heat and oxygen can lead to an explosion if any fuel is present.
To concentrate the h202 the traditional method is to boil it. This is dangerous because it decomposes the h202 rapidly, and makes more oxygen, which could explode.
It was posted before that one if one froze the h202 one would need to filter of the ice as soon as it formed. One only needs to filter of the h202 before all the water is frozen to get more concentrated h202. This method is also fairly ineffective, because of the molecular similarity between the h2o2 and h2o molecules and their similar melting points cause the h202 to become trapped in the water.
Further concentration of h2o2 is made difficult because of common stabilizing agents that prohibit any effective use of concentrated h202
The fact that stabilizers are present does not mean that the h202 is not dangerous, but that it is only difficult to use. always be aware of the concentrations of your h202 and the safety implications that apply to such concentrations.
This said do not attempt to concentrate any h202 without (a) proper safely materials (eye protection!!) (b)a clear idea of the potential hazards and dangers and how you would react to any of these ©A clear and accurate understanding of the chemistry of the reaction, and (d) The supervision of a responsible adult who will be responsible for your safety and or one who is willing to be sued when you cripple yourself.
Merged post follows:
Consecutive posts mergedDisclaimer:
Do not attempt to concentrate any h202 without (a) proper safely materials (eye protection!!) (b)a clear idea of the potential hazards and dangers and how you would react to any of these ©A clear and accurate understanding of the chemistry of the reaction, and (d) The supervision of a responsible adult who will be responsible for your safety and or one who is willing to be sued when you cripple yourself.
To make matters clear, lets begin at the top. Hydrogen peroxide in low concentrations such as those sold at the drug store are not dangerous. It is sold with stabilizing agents that make it difficult to concentrate further. When H2O2 decomposes it looses an oxygen that comes off as a gas. This ability to produce oxygen gives h2o2 its explosive nature. This reaction is also exothermic meaning it give off heat. In small concentrations this change is difficult to measure. At higher concentrations so much heat is given of that it can vaporize the h2o2, creating steam. This reaction is used in some engines.
The fact that stabilizers are present does not mean that the h202 is not dangerous, but that it is only difficult to use. always be aware of the concentrations of your h202 and the safety implications that apply to such concentrations.
Safety concerns come into play when the concentration increases to an extent to make the h2o2 highly corrosive (about 25%), unstable as a lot of heat and oxygen can be produced very quickly, and the combination of extreme heat and oxygen can lead to an explosion if any fuel is present.
To concentrate the h202 the traditional method is to boil it. This is dangerous because it decomposes the h202 rapidly, and makes more oxygen, which could explode.
It was posted before that one if one froze the h202 one would need to filter of the ice as soon as it formed. One only needs to filter of the h202 before all the water is frozen to get more concentrated h202. This method is also fairly ineffective, because of the molecular similarity between the h2o2 and h2o molecules and their similar melting points cause the h202 to become trapped in the water.
Further concentration of h2o2 is made difficult because of common stabilizing agents that prohibit any effective use of concentrated h202
The fact that stabilizers are present does not mean that the h202 is not dangerous, but that it is only difficult to use. always be aware of the concentrations of your h202 and the safety implications that apply to such concentrations.
This said do not attempt to concentrate any h202 without (a) proper safely materials (eye protection!!) (b)a clear idea of the potential hazards and dangers and how you would react to any of these ©A clear and accurate understanding of the chemistry of the reaction, and (d) The supervision of a responsible adult who will be responsible for your safety and or one who is willing to be sued when you cripple yourself.
